Nigel has three black socks, four red socks and six white socks in his sock drawer. He reaches in and pulls out a sock at random. * (2 points) (a) Write down the probability that the sock is white. Enter your answer 15. Question 4 : Nigel puts the sock back in the drawer. Then he pulls out two socks at random. * (2 points) (b) Find the probability that the first sock is black and the second sock is red. Enter your answer